BEHRINGER / PROTON

This is an analog paraphonic semi-modular synthesizer with two VCOs, a multi-mode VCF, four envelopes and a wave folder.

Semi-modular design
Designed around an intuitive workflow, PROTON benefits from its semi-modular design. Simply set PROTON to self-oscillate, connect your favorite keyboard or computer via MIDI over DIN or USB, and start exploring the world of analog music synthesis right out of the box.

Double Down
Double Down!

PROTON's two self-oscillating multi-mode VCFs can be set in parallel or series, and linkable CVs open up even more possibilities. Two ASR envelopes each feature reverse/inverse/loop/bounce options and can control the VCA and wave folders. Two analog ADSR generators also allow for unique sound performances by modulating the VCFs.

Master the Waves
Master the Waves
The multi-mode wave folder adds rich harmonic content to the LFOs. With five waveforms, MIDI clock sync, and two flexible LFOs with key, sync, phase and depth control, the possibilities are endless. The noise generator takes waveform generation to the next level, and the ability to add external audio to one or both VCFs further enhances PROTON's sound-generating capabilities.

Eurorack compatible
Eurorack compatible
PROTON is designed to fit into a standard Eurorack case. Simply connect the power cable to a power source and mount the module with the included screws. This allows you to mix PROTON with other synth modules for some truly unique setups.

Specifications

Synthesizer architecture
Number of tones
1 / 2 (monophonic / paraphonic)

Type
Analog

Oscillators
2 VCO

LFO
2 LFO

VCF
2 LPF/HPF/band pass (switchable at 12 dB/octave)

Envelope
2 ADSR / 2 ASR

Wave folder
1 wave folder circuit

Connections
Power switch
Rear panel

MIDI in
5-pin DIN (top panel)

MIDI thru
5-pin DIN (rear panel)

USB
USB 2.0 Type B socket

External audio input
6.35 mm (1/4") TR jack

Audio output
6.35mm (1/4") TR jack

Headphone output
6.35mm (1/4") TRS jack

USB connector
Type
Class-compliant USB 2.0 Type B

Supported OS
Windows 7 or higher

Mac OS 10.10 or higher

Oscillator section
Controls
Tune x 2, Shape x 2, Pulse Width x 2, Sub Osc x 2, Osc Mix.

Buttons
Range x 2, Paraphonic on/off, Sync on/off

Filter section
Controls
Frequency x 2, Resonance x 2, Modulation depth x 2, Envelope depth x 2, Noise

Buttons
Filter mode x 2, Filter link on/off, Soft on/off, Key track on/off

Wavefolder section
Controls
Symmetry, Fold

Buttons
Mode

Envelope section - ADSR
Controls
Attack x 2, Decay x 2, Sustain x 2, Release x 2

Buttons
Fast/Slow, Retrigger

Envelope section - ASR
Controls
Attack x 2, Release x 2

Buttons
Loop, Bounce, Sustain, Invert, Reverse, Retrigger

LFO Section
Controls
Shape x 2, Rate x 2, Depth x 2

Buttons
1 Shot, Key Sync, Retrigger, Shift

VCA Section
Controls
Bias x 2, Volume, External Audio

Utility Section
Controls
CV Mix, Portamento Time, Attenuator 1, Attenuator 2

Input Patchbay
3.5 mm TS Jack
Osc 1 CV, Osc 2 CV, Osc 1&2 CV, PW 1, PW 2, Shape 1, Shape 2, WF In, WF Sym, WF Folds, VCF 1 In, VCF 1 Freq, VCF 1 Resonance, VCF 2 In, VCF 2 Freq, VCF 2 Resonance, VCA 1 In, VCA 1 CV, External Input, Out Input, LFO 1 Trig, LFO 2 Trig, LFO 1 Rate, LFO 2 Rate, LFO 1 Shape, LFO 2 Shape, ADSR 1 Trig, ADSR 2 Trig, AR 1 Trig, AR 2 Trig, VCA 2 In, VCA 2 CV, Att 1 In, Att 2 In, Mult In, CV Mix 1, CV Mix 2, CV Mix CV, Sum A, Sum B Output Patchbay 3.5 mm TS Jack Osc 1, Osc 2 , Osc Mix, WF, VCF 1, VCF 2, VCF Mix, VCA 1, VCA 2, Mult 1, Mult 2, Att 1, CV Mix, Sum, Att 2, ADSR 1, ADSR 2, AR 1, AR 2, LFO 1 Uni, LFO 1 Bi, LFO 2 Uni, LFO 2 Bi, Assign